EMT: Basic Special Considerations and Foreign Body Airway Obstruction

Beyond the Norm: Special Airway Challenges

While fundamental airway management techniques apply to most patients, certain populations and situations present unique challenges. This lecture explores these special considerations, focusing on anatomical and physiological differences in various patient groups and the critical management of Foreign Body Airway Obstruction (FBAO), a life-threatening emergency demanding swift and effective intervention.

Special Patient Populations and Their Airway Considerations

• Pediatric Patients:
  • Smaller airway diameter, making them more prone to obstruction from swelling or foreign bodies.
  • Larger tongue relative to the oral cavity.
  • More pliable trachea.
  • Higher metabolic rate and oxygen consumption, leading to faster decompensation.
• Geriatric Patients:
  • Loss of elasticity in lung tissue and chest wall rigidity.
  • Decreased gag reflex, increasing aspiration risk.
  • Potential for dentures, which can become dislodged and obstruct the airway.
• Bariatric Patients:
  • Increased soft tissue in the neck and pharynx, making airway visualization and management difficult.
  • Increased work of breathing and risk of hypoventilation.
• Patients with Stomas/Tracheostomies:
  • Bypass the upper airway, requiring direct ventilation through the stoma.
  • Potential for mucous plugs or dislodgement of the tracheostomy tube.
• Patients with Facial Trauma:
  • Disruption of facial anatomy can lead to severe airway compromise (e.g., broken facial bones, bleeding, swelling).
  • May require specialized airway techniques or surgical intervention.

Foreign Body Airway Obstruction (FBAO)

FBAO is a true emergency that can rapidly lead to hypoxia and cardiac arrest. Recognition and prompt intervention are paramount.

• Recognition:
  • Mild Obstruction: Patient is conscious, able to cough forcefully, and may be wheezing between coughs.
  • Severe Obstruction: Patient is conscious but unable to speak, cough, or breathe; may make a "universal choking sign" (hands to throat). May become unconscious.
• Management:
  • Conscious Adult/Child: Abdominal thrusts (Heimlich maneuver).
  • Conscious Infant: Five back blows followed by five chest thrusts.
  • Unconscious Patient (any age): Begin CPR, checking the airway for the foreign body before ventilations.

Critical Thinking Questions

1. You are responding to a call for a 78-year-old male who is choking in a restaurant. He is conscious but unable to speak. What is your immediate course of action?
2. Describe the anatomical differences in a pediatric airway that make it more susceptible to obstruction compared to an adult airway.
3. You are treating a bariatric patient in respiratory distress. What specific airway management challenges might you anticipate, and how would you prepare for them?
4. A patient with a tracheostomy tube presents with sudden respiratory distress. What are the most common causes of this, and how would you troubleshoot them in the field?
5. You are managing a patient with severe facial trauma after a motor vehicle collision. What airway management strategies would you prioritize, considering potential bleeding and anatomical disruption?